1 # Support routines for LD testsuite.
2 # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 # 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
5 # This file is part of the GNU Binutils.
7 # This file is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 # Extract and print the version number of ld.
24 proc default_ld_version { ld } {
27 if { ![is_remote host] && [which $ld] == 0 } then {
28 perror "$ld does not exist"
32 remote_exec host "$ld --version" "" "/dev/null" "ld.version"
33 remote_upload host "ld.version"
34 set tmp [prune_warnings [file_contents "ld.version"]]
35 remote_file build delete "ld.version"
36 remote_file host delete "ld.version"
38 regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
39 if [info exists number] then {
40 clone_output "$ld $number\n"
44 proc run_host_cmd { prog command } {
47 if { ![is_remote host] && [which "$prog"] == 0 } then {
48 perror "$prog does not exist"
52 verbose -log "$prog $command"
53 set status [remote_exec host [concat sh -c [list "$prog $command 2>&1"]] "" "/dev/null" "ld.tmp"]
54 remote_upload host "ld.tmp"
55 set link_output [file_contents "ld.tmp"]
56 regsub "\n$" $link_output "" link_output
57 if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
58 append link_output "child process exited abnormally"
60 remote_file build delete ld.tmp
61 remote_file host delete ld.tmp
63 if [string match "" $link_output] then {
67 verbose -log "$link_output"
71 proc run_host_cmd_yesno { prog command } {
74 set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
75 if [string match "" $exec_output] then {
81 # Link an object using relocation.
83 proc default_ld_relocate { ld target objects } {
86 remote_file host delete $target
87 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
90 # Check to see if ld is being invoked with a non-endian output format
92 proc is_endian_output_format { object_flags } {
94 if {[string match "*-oformat binary*" $object_flags] || \
95 [string match "*-oformat ieee*" $object_flags] || \
96 [string match "*-oformat ihex*" $object_flags] || \
97 [string match "*-oformat netbsd-core*" $object_flags] || \
98 [string match "*-oformat srec*" $object_flags] || \
99 [string match "*-oformat tekhex*" $object_flags] || \
100 [string match "*-oformat trad-core*" $object_flags] } then {
107 # Look for big-endian or little-endian switches in the multlib
108 # options and translate these into a -EB or -EL switch. Note
109 # we cannot rely upon proc process_multilib_options to do this
110 # for us because for some targets the compiler does not support
111 # -EB/-EL but it does support -mbig-endian/-mlittle-endian, and
112 # the site.exp file will include the switch "-mbig-endian"
113 # (rather than "big-endian") which is not detected by proc
114 # process_multilib_options.
116 proc big_or_little_endian {} {
118 if [board_info [target_info name] exists multilib_flags] {
119 set tmp_flags " [board_info [target_info name] multilib_flags]"
121 foreach x $tmp_flags {
123 {*big*endian eb EB -eb -EB -mb -meb} {
127 {*little*endian el EL -el -EL -ml -mel} {
139 # Link a program using ld.
141 proc default_ld_link { ld target objects } {
150 set objs "$HOSTING_CRT0 $objects"
151 set libs "$LIBS $HOSTING_LIBS"
153 if [is_endian_output_format $objects] then {
154 set flags [big_or_little_endian]
159 remote_file host delete $target
161 return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
164 # Link a program using ld, without including any libraries.
166 proc default_ld_simple_link { ld target objects } {
171 if [is_endian_output_format $objects] then {
172 set flags [big_or_little_endian]
177 # If we are compiling with gcc, we want to add gcc_ld_flag to
178 # flags. Rather than determine this in some complex way, we guess
179 # based on the name of the compiler.
181 set ldparm [string first " " $ld]
182 if { $ldparm > 0 } then {
183 set ldexe [string range $ld 0 $ldparm]
185 set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""]
186 if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then {
187 set flags "$gcc_ld_flag $flags"
190 remote_file host delete $target
192 set exec_output [run_host_cmd "$ld" "$flags -o $target $objects"]
193 set exec_output [prune_warnings $exec_output]
195 # We don't care if we get a warning about a non-existent start
196 # symbol, since the default linker script might use ENTRY.
197 regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
199 if [string match "" $exec_output] then {
206 # Compile an object using cc.
208 proc default_ld_compile { cc source object } {
217 if {[llength $cc_prog] > 1} then {
218 set cc_prog [lindex $cc_prog 0]
220 if {![is_remote host] && [which $cc_prog] == 0} then {
221 perror "$cc_prog does not exist"
225 remote_file build delete "$object"
226 remote_file host delete "$object"
228 set flags "-I$srcdir/$subdir"
230 # If we are compiling with gcc, we want to add gcc_gas_flag to
231 # flags. Rather than determine this in some complex way, we guess
232 # based on the name of the compiler.
234 set ccparm [string first " " $cc]
236 if { $ccparm > 0 } then {
237 set ccflags [string range $cc $ccparm end]
238 set ccexe [string range $cc 0 $ccparm]
241 set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
242 if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then {
243 set flags "$gcc_gas_flag $flags"
246 if {[string match "*++*" $ccexe]} {
247 set flags "$flags $CXXFLAGS"
249 set flags "$flags $CFLAGS"
252 if [board_info [target_info name] exists multilib_flags] {
253 append flags " [board_info [target_info name] multilib_flags]"
256 verbose -log "$cc $flags $ccflags -c $source -o $object"
258 set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
259 remote_upload host "ld.tmp"
260 set exec_output [file_contents "ld.tmp"]
261 remote_file build delete "ld.tmp"
262 remote_file host delete "ld.tmp"
263 set exec_output [prune_warnings $exec_output]
264 if [string match "" $exec_output] then {
265 if {![file exists $object]} then {
266 regexp ".*/(\[^/\]*)$" $source all dobj
267 regsub "\\.c" $dobj ".o" realobj
268 verbose "looking for $realobj"
269 if {[remote_file host exists $realobj]} then {
270 verbose -log "mv $realobj $object"
271 remote_upload "$realobj" "$object"
273 perror "$object not found after compilation"
279 verbose -log "$exec_output"
280 perror "$source: compilation failed"
287 proc default_ld_assemble { as source object } {
291 if ![info exists ASFLAGS] { set ASFLAGS "" }
293 set flags [big_or_little_endian]
294 set exec_output [run_host_cmd "$as" "$flags $ASFLAGS -o $object $source"]
295 set exec_output [prune_warnings $exec_output]
296 if [string match "" $exec_output] then {
299 perror "$source: assembly failed"
304 # Run nm on a file, putting the result in the array nm_output.
306 proc default_ld_nm { nm nmflags object } {
311 if {[info exists nm_output]} {
315 if ![info exists NMFLAGS] { set NMFLAGS "" }
317 # Ensure consistent sorting of symbols
318 if {[info exists env(LC_ALL)]} {
319 set old_lc_all $env(LC_ALL)
323 verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
325 set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
326 if {[info exists old_lc_all]} {
327 set env(LC_ALL) $old_lc_all
331 remote_upload host "ld.stderr"
332 remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
333 set exec_output [prune_warnings [file_contents "ld.stderr"]]
334 remote_file host delete "ld.stderr"
335 remote_file build delete "ld.stderr"
336 if [string match "" $exec_output] then {
337 set file [open tmpdir/nm.out r]
338 while { [gets $file line] != -1 } {
340 if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] {
341 set name [string trimleft $name "_"]
342 verbose "Setting nm_output($name) to 0x$value" 2
343 set nm_output($name) 0x$value
349 verbose -log "$exec_output"
350 perror "$object: nm failed"
355 # Define various symbols needed when not linking against all
357 proc ld_simple_link_defsyms {} {
359 set flags "--defsym __stack_chk_fail=0"
361 # ARM targets call __gccmain
362 if {[istarget arm*-*-*] || \
363 [istarget strongarm*-*-*] || \
364 [istarget xscale*-*-*] || \
365 [istarget thumb-*-*] } {
366 append flags " --defsym __gccmain=0"
369 # PowerPC EABI code calls __eabi.
370 if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
371 append flags " --defsym __eabi=0"
374 # mn10200 code calls __truncsipsi2_d0_d2.
375 if {[istarget mn10200*-*-*]} then {
376 append flags " --defsym __truncsipsi2_d0_d2=0"
379 # m6811/m6812 code has references to soft registers.
380 if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
381 append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
382 append flags " --defsym _.d3=0 --defsym _.d4=0"
383 append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
386 # Some OpenBSD targets have ProPolice and reference __guard and
387 # __stack_smash_handler.
388 if [istarget *-*-openbsd*] {
389 append flags " --defsym __guard=0"
390 append flags " --defsym __stack_smash_handler=0"
396 # True if the object format is known to be ELF.
398 proc is_elf_format {} {
399 if { ![istarget *-*-sysv4*] \
400 && ![istarget *-*-unixware*] \
401 && ![istarget *-*-elf*] \
402 && ![istarget *-*-eabi*] \
403 && ![istarget hppa*64*-*-hpux*] \
404 && ![istarget *-*-linux*] \
405 && ![istarget frv-*-uclinux*] \
406 && ![istarget bfin-*-uclinux] \
407 && ![istarget *-*-irix5*] \
408 && ![istarget *-*-irix6*] \
409 && ![istarget *-*-netbsd*] \
410 && ![istarget *-*-solaris2*] } {
414 if { [istarget *-*-linux*aout*] \
415 || [istarget *-*-linux*oldld*] } {
419 if { ![istarget *-*-netbsdelf*] \
420 && ([istarget *-*-netbsd*aout*] \
421 || [istarget *-*-netbsdpe*] \
422 || [istarget arm*-*-netbsd*] \
423 || [istarget sparc-*-netbsd*] \
424 || [istarget i*86-*-netbsd*] \
425 || [istarget m68*-*-netbsd*] \
426 || [istarget vax-*-netbsd*] \
427 || [istarget ns32k-*-netbsd*]) } {
433 # True if the object format is known to be 64-bit ELF.
435 proc is_elf64 { binary_file } {
440 catch "exec $READELF $READELFFLAGS -h $binary_file > readelf.out" got
442 if ![string match "" $got] then {
446 if { ![regexp "\n\[ \]*Class:\[ \]*ELF(\[0-9\]+)\n" \
447 [file_contents readelf.out] nil readelf_size] } {
451 if { $readelf_size == "64" } {
458 # True if the object format is known to be a.out.
460 proc is_aout_format {} {
461 if { [istarget *-*-*\[ab\]out*] \
462 || [istarget *-*-linux*oldld*] \
463 || [istarget *-*-msdos*] \
464 || [istarget arm-*-netbsd] \
465 || [istarget i?86-*-netbsd] \
466 || [istarget i?86-*-mach*] \
467 || [istarget i?86-*-vsta] \
468 || [istarget pdp11-*-*] \
469 || [istarget m68*-ericsson-ose] \
470 || [istarget m68k-hp-bsd*] \
471 || [istarget m68*-*-hpux*] \
472 || [istarget m68*-*-netbsd] \
473 || [istarget m68*-*-netbsd*4k*] \
474 || [istarget m68k-sony-*] \
475 || [istarget m68*-sun-sunos\[34\]*] \
476 || [istarget m68*-wrs-vxworks*] \
477 || [istarget ns32k-*-*] \
478 || [istarget sparc*-*-netbsd] \
479 || [istarget sparc-sun-sunos4*] \
480 || [istarget vax-dec-ultrix*] \
481 || [istarget vax-*-netbsd] } {
487 # True if the object format is known to be PE COFF.
489 proc is_pecoff_format {} {
490 if { ![istarget *-*-mingw*] \
491 && ![istarget *-*-cygwin*] \
492 && ![istarget *-*-cegcc*] \
493 && ![istarget *-*-pe*] } {
500 # Compares two files line-by-line.
501 # Returns differences if exist.
502 # Returns null if file(s) cannot be opened.
504 proc simple_diff { file_1 file_2 } {
510 if [file exists $file_1] then {
511 set file_a [open $file_1 r]
513 warning "$file_1 doesn't exist"
517 if [file exists $file_2] then {
518 set file_b [open $file_2 r]
520 fail "$file_2 doesn't exist"
524 verbose "# Diff'ing: $file_1 $file_2\n" 2
526 while { [gets $file_a line] != $eof } {
527 if [regexp "^#.*$" $line] then {
535 while { [gets $file_b line] != $eof } {
536 if [regexp "^#.*$" $line] then {
544 for { set i 0 } { $i < [llength $list_a] } { incr i } {
545 set line_a [lindex $list_a $i]
546 set line_b [lindex $list_b $i]
548 verbose "\t$file_1: $i: $line_a\n" 3
549 verbose "\t$file_2: $i: $line_b\n" 3
550 if [string compare $line_a $line_b] then {
551 verbose -log "\t$file_1: $i: $line_a\n"
552 verbose -log "\t$file_2: $i: $line_b\n"
559 if { [llength $list_a] != [llength $list_b] } {
564 if $differences<1 then {
570 # Copied from gas testsuite, tweaked and further extended.
572 # Assemble a .s file, then run some utility on it and check the output.
574 # There should be an assembly language file named FILE.s in the test
575 # suite directory, and a pattern file called FILE.d. `run_dump_test'
576 # will assemble FILE.s, run some tool like `objdump', `objcopy', or
577 # `nm' on the .o file to produce textual output, and then analyze that
578 # with regexps. The FILE.d file specifies what program to run, and
579 # what to expect in its output.
581 # The FILE.d file begins with zero or more option lines, which specify
582 # flags to pass to the assembler, the program to run to dump the
583 # assembler's output, and the options it wants. The option lines have
588 # OPTION is the name of some option, like "name" or "objdump", and
589 # VALUE is OPTION's value. The valid options are described below.
590 # Whitespace is ignored everywhere, except within VALUE. The option
591 # list ends with the first line that doesn't match the above syntax
592 # (hmm, not great for error detection).
594 # The interesting options are:
597 # The name of this test, passed to DejaGNU's `pass' and `fail'
598 # commands. If omitted, this defaults to FILE, the root of the
599 # .s and .d files' names.
602 # When assembling, pass FLAGS to the assembler.
603 # If assembling several files, you can pass different assembler
604 # options in the "source" directives. See below.
607 # Link assembled files using FLAGS, in the order of the "source"
608 # directives, when using multiple files.
610 # ld_after_inputfiles: FLAGS
611 # Similar to "ld", but put after all input files.
613 # objcopy_linked_file: FLAGS
614 # Run objcopy on the linked file with the specified flags.
615 # This lets you transform the linked file using objcopy, before the
616 # result is analyzed by an analyzer program specified below (which
617 # may in turn *also* be objcopy).
620 # The name of the program to run to analyze the .o file produced
621 # by the assembler or the linker output. This can be omitted;
622 # run_dump_test will guess which program to run by seeing which of
623 # the flags options below is present.
628 # Use the specified program to analyze the assembler or linker
629 # output file, and pass it FLAGS, in addition to the output name.
630 # Note that they are run with LC_ALL=C in the environment to give
631 # consistent sorting of symbols.
633 # source: SOURCE [FLAGS]
634 # Assemble the file SOURCE.s using the flags in the "as" directive
635 # and the (optional) FLAGS. If omitted, the source defaults to
637 # This is useful if several .d files want to share a .s file.
638 # More than one "source" directive can be given, which is useful
639 # when testing linking.
642 # The test is expected to fail on TARGET. This may occur more than
646 # Only run the test for TARGET. This may occur more than once; the
647 # target being tested must match at least one. You may provide target
648 # name "cfi" for any target supporting the CFI statements.
651 # Do not run the test for TARGET. This may occur more than once;
652 # the target being tested must not match any of them.
655 # An error with message matching REGEX must be emitted for the test
656 # to pass. The PROG, objdump, nm and objcopy options have no
657 # meaning and need not supplied if this is present.
660 # Expect a linker warning matching REGEX. It is an error to issue
661 # both "error" and "warning".
663 # Each option may occur at most once unless otherwise mentioned.
665 # After the option lines come regexp lines. `run_dump_test' calls
666 # `regexp_diff' to compare the output of the dumping tool against the
667 # regexps in FILE.d. `regexp_diff' is defined later in this file; see
668 # further comments there.
670 proc run_dump_test { name } {
672 global OBJDUMP NM AS OBJCOPY READELF LD
673 global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
674 global host_triplet runtests
677 if [string match "*/*" $name] {
679 set name [file tail $name]
681 set file "$srcdir/$subdir/$name"
684 if ![runtest_file_p $runtests $name] then {
688 set opt_array [slurp_options "${file}.d"]
689 if { $opt_array == -1 } {
690 perror "error reading options from $file.d"
691 unresolved $subdir/$name
694 set dumpfile tmpdir/dump.out
699 set opts(ld_after_inputfiles) {}
702 set opts(notarget) {}
712 set opts(objcopy_linked_file) {}
713 set asflags(${file}.s) {}
715 foreach i $opt_array {
716 set opt_name [lindex $i 0]
717 set opt_val [lindex $i 1]
718 if ![info exists opts($opt_name)] {
719 perror "unknown option $opt_name in file $file.d"
720 unresolved $subdir/$name
724 switch -- $opt_name {
729 # Move any source-specific as-flags to a separate array to
730 # simplify processing.
731 if { [llength $opt_val] > 1 } {
732 set asflags([lindex $opt_val 0]) [lrange $opt_val 1 end]
733 set opt_val [lindex $opt_val 0]
735 set asflags($opt_val) {}
739 if [string length $opts($opt_name)] {
740 perror "option $opt_name multiply set in $file.d"
741 unresolved $subdir/$name
745 # A single "# ld:" with no options should do the right thing.
746 if { $opt_name == "ld" } {
749 # Likewise objcopy_linked_file.
750 if { $opt_name == "objcopy_linked_file" } {
755 if { $opt_name == "as" || $opt_name == "ld" } {
756 set opt_val [subst $opt_val]
758 set opts($opt_name) [concat $opts($opt_name) $opt_val]
760 foreach opt { as ld } {
761 regsub {\[big_or_little_endian\]} $opts($opt) \
762 [big_or_little_endian] opts($opt)
765 # Decide early whether we should run the test for this target.
766 if { [llength $opts(target)] > 0 } {
768 foreach targ $opts(target) {
769 if [istarget $targ] {
774 if { $targmatch == 0 } {
778 foreach targ $opts(notarget) {
779 if [istarget $targ] {
785 # It's meaningless to require an output-testing method when we
787 if { $opts(error) == "" } {
788 if {$opts(PROG) != ""} {
789 switch -- $opts(PROG) {
790 objdump { set program objdump }
791 nm { set program nm }
792 objcopy { set program objcopy }
793 readelf { set program readelf }
795 { perror "unrecognized program option $opts(PROG) in $file.d"
796 unresolved $subdir/$name
800 # Guess which program to run, by seeing which option was specified.
801 foreach p {objdump objcopy nm readelf} {
802 if {$opts($p) != ""} {
803 if {$program != ""} {
804 perror "ambiguous dump program in $file.d"
805 unresolved $subdir/$name
813 if { $program == "" && $opts(warning) == "" } {
814 perror "dump program unspecified in $file.d"
815 unresolved $subdir/$name
820 if { $opts(name) == "" } {
821 set testname "$subdir/$name"
823 set testname $opts(name)
826 if { $opts(source) == "" } {
827 set sourcefiles [list ${file}.s]
830 foreach sf $opts(source) {
831 if { [string match "/*" $sf] } {
832 lappend sourcefiles "$sf"
834 lappend sourcefiles "$srcdir/$subdir/$sf"
836 # Must have asflags indexed on source name.
837 set asflags($srcdir/$subdir/$sf) $asflags($sf)
841 # Time to setup xfailures.
842 foreach targ $opts(xfail) {
846 # Assemble each file.
848 for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
849 set sourcefile [lindex $sourcefiles $i]
851 set objfile "tmpdir/dump$i.o"
852 catch "exec rm -f $objfile" exec_output
853 lappend objfiles $objfile
854 set cmd "$AS $ASFLAGS $opts(as) $asflags($sourcefile) -o $objfile $sourcefile"
857 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
858 remote_upload host "ld.tmp"
859 set comp_output [prune_warnings [file_contents "ld.tmp"]]
860 remote_file host delete "ld.tmp"
861 remote_file build delete "ld.tmp"
863 if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
864 send_log "$comp_output\n"
865 verbose "$comp_output" 3
867 set exitstat "succeeded"
868 if { $cmdret != 0 } { set exitstat "failed" }
869 verbose -log "$exitstat with: <$comp_output>"
875 set expmsg $opts(error)
876 if { $opts(warning) != "" } {
877 if { $expmsg != "" } {
878 perror "$testname: mixing error and warning test-directives"
881 set expmsg $opts(warning)
884 # Perhaps link the file(s).
886 set objfile "tmpdir/dump"
887 catch "exec rm -f $objfile" exec_output
889 # Add -L$srcdir/$subdir so that the linker command can use
890 # linker scripts in the source directory.
891 set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
892 $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
895 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
896 remote_upload host "ld.tmp"
897 set comp_output [file_contents "ld.tmp"]
898 remote_file host delete "ld.tmp"
899 remote_file build delete "ld.tmp"
900 set cmdret [lindex $cmdret 0]
902 if { $cmdret == 0 && $run_objcopy } {
904 set objfile "tmpdir/dump1"
905 remote_file host delete $objfile
907 # Note that we don't use OBJCOPYFLAGS here; any flags must be
908 # explicitly specified.
909 set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
912 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
913 remote_upload host "ld.tmp"
914 append comp_output [file_contents "ld.tmp"]
915 remote_file host delete "ld.tmp"
916 remote_file build delete "ld.tmp"
917 set cmdret [lindex $cmdret 0]
920 regsub "\n$" $comp_output "" comp_output
921 if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
922 set exitstat "succeeded"
923 if { $cmdret != 0 } { set exitstat "failed" }
924 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
925 send_log "$comp_output\n"
926 verbose "$comp_output" 3
928 if { [regexp $expmsg $comp_output] \
929 && (($cmdret == 0) == ($opts(warning) != "")) } {
930 # We have the expected output from ld.
931 if { $opts(error) != "" || $program == "" } {
936 verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>"
942 set objfile "tmpdir/dump0.o"
945 # We must not have expected failure if we get here.
946 if { $opts(error) != "" } {
951 set progopts1 $opts($program)
952 eval set progopts \$[string toupper $program]FLAGS
953 eval set binary \$[string toupper $program]
955 if { ![is_remote host] && [which $binary] == 0 } {
960 if { $progopts1 == "" } { set $progopts1 "-r" }
961 verbose "running $binary $progopts $progopts1" 3
963 # Objcopy, unlike the other two, won't send its output to stdout,
964 # so we have to run it specially.
965 set cmd "$binary $progopts $progopts1 $objfile > $dumpfile"
966 if { $program == "objcopy" } {
967 set cmd "$binary $progopts $progopts1 $objfile $dumpfile"
970 # Ensure consistent sorting of symbols
971 if {[info exists env(LC_ALL)]} {
972 set old_lc_all $env(LC_ALL)
976 set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
977 remote_upload host "ld.tmp"
978 set comp_output [prune_warnings [file_contents "ld.tmp"]]
979 remote_file host delete "ld.tmp"
980 remote_file build delete "ld.tmp"
981 if {[info exists old_lc_all]} {
982 set env(LC_ALL) $old_lc_all
986 if ![string match "" $comp_output] then {
987 send_log "$comp_output\n"
992 if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
993 if { [regexp_diff $dumpfile "${file}.d"] } then {
995 if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
1002 proc slurp_options { file } {
1003 if [catch { set f [open $file r] } x] {
1004 #perror "couldn't open `$file': $x"
1009 # whitespace expression
1012 # whitespace is ignored anywhere except within the options list;
1013 # option names are alphabetic plus underscore only.
1014 set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$"
1015 while { [gets $f line] != -1 } {
1016 set line [string trim $line]
1017 # Whitespace here is space-tab.
1018 if [regexp $pat $line xxx opt_name opt_val] {
1020 lappend opt_array [list $opt_name $opt_val]
1029 # regexp_diff, copied from gas, based on simple_diff above.
1030 # compares two files line-by-line
1031 # file1 contains strings, file2 contains regexps and #-comments
1032 # blank lines are ignored in either file
1033 # returns non-zero if differences exist
1035 proc regexp_diff { file_1 file_2 } {
1043 if [file exists $file_1] then {
1044 set file_a [open $file_1 r]
1046 warning "$file_1 doesn't exist"
1050 if [file exists $file_2] then {
1051 set file_b [open $file_2 r]
1053 fail "$file_2 doesn't exist"
1058 verbose " Regexp-diff'ing: $file_1 $file_2" 2
1063 while { [string length $line_a] == 0 } {
1064 if { [gets $file_a line_a] == $eof } {
1069 while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
1070 if [ string match "#pass" $line_b ] {
1074 } elseif [ string match "#..." $line_b ] {
1075 if { [gets $file_b line_b] == $eof } {
1080 verbose "looking for \"^$line_b$\"" 3
1081 while { ![regexp "^$line_b$" "$line_a"] } {
1082 verbose "skipping \"$line_a\"" 3
1083 if { [gets $file_a line_a] == $eof } {
1090 if { [gets $file_b line_b] == $eof } {
1098 } elseif { $end_1 && $end_2 } {
1100 } elseif { $end_1 } {
1101 send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
1102 verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
1105 } elseif { $end_2 } {
1106 send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
1107 verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
1111 verbose "regexp \"^$line_b$\"\nline \"$line_a\"" 3
1112 if ![regexp "^$line_b$" "$line_a"] {
1113 send_log "regexp_diff match failure\n"
1114 send_log "regexp \"^$line_b$\"\nline \"$line_a\"\n"
1120 if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
1121 send_log "$file_1 and $file_2 are different lengths\n"
1122 verbose "$file_1 and $file_2 are different lengths" 3
1132 proc file_contents { filename } {
1133 set file [open $filename r]
1134 set contents [read $file]
1139 # Create an archive using ar
1141 proc ar_simple_create { ar aropts target objects } {
1142 remote_file host delete $target
1144 set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
1145 set exec_output [prune_warnings $exec_output]
1147 if [string match "" $exec_output] then {
1148 send_log "$exec_output\n"
1155 # List contains test-items with 3 items followed by 2 lists, one item and
1156 # one optional item:
1157 # 0:name 1:ld/ar options 2:assembler options
1158 # 3:filenames of assembler files 4: action and options. 5: name of output file
1159 # 6:compiler flags (optional)
1162 # objdump: Apply objdump options on result. Compare with regex (last arg).
1163 # nm: Apply nm options on result. Compare with regex (last arg).
1164 # readelf: Apply readelf options on result. Compare with regex (last arg).
1166 proc run_ld_link_tests { ldtests } {
1180 foreach testitem $ldtests {
1181 set testname [lindex $testitem 0]
1183 if ![runtest_file_p $runtests $testname] then {
1187 set ld_options [lindex $testitem 1]
1188 set as_options [lindex $testitem 2]
1189 set src_files [lindex $testitem 3]
1190 set actions [lindex $testitem 4]
1191 set binfile tmpdir/[lindex $testitem 5]
1192 set cflags [lindex $testitem 6]
1197 # verbose -log "Testname is $testname"
1198 # verbose -log "ld_options is $ld_options"
1199 # verbose -log "as_options is $as_options"
1200 # verbose -log "src_files is $src_files"
1201 # verbose -log "actions is $actions"
1202 # verbose -log "binfile is $binfile"
1204 # Assemble each file in the test.
1205 foreach src_file $src_files {
1206 set objfile "tmpdir/[file rootname $src_file].o"
1207 lappend objfiles $objfile
1209 if { [file extension $src_file] == ".c" } {
1210 set as_file "tmpdir/[file rootname $src_file].s"
1211 if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] {
1216 set as_file "$srcdir/$subdir/$src_file"
1218 if ![ld_assemble $as "$as_options $as_file" $objfile] {
1224 # Catch assembler errors.
1225 if { $is_unresolved != 0 } {
1226 unresolved $testname
1230 if { [regexp ".*a$" $binfile] } {
1231 if { ![ar_simple_create $ar $ld_options $binfile "$objfiles"] } {
1237 } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles"] } {
1244 if { $failed == 0 } {
1245 foreach actionlist $actions {
1246 set action [lindex $actionlist 0]
1247 set progopts [lindex $actionlist 1]
1249 # There are actions where we run regexp_diff on the
1250 # output, and there are other actions (presumably).
1251 # Handling of the former look the same.
1255 { set dump_prog $objdump }
1257 { set dump_prog $nm }
1259 { set dump_prog $READELF }
1262 perror "Unrecognized action $action"
1268 if { $dump_prog != "" } {
1269 set dumpfile [lindex $actionlist 2]
1270 set binary $dump_prog
1272 # Ensure consistent sorting of symbols
1273 if {[info exists env(LC_ALL)]} {
1274 set old_lc_all $env(LC_ALL)
1277 set cmd "$binary $progopts $binfile"
1278 set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
1280 remote_upload host "ld.stderr"
1281 set comp_output [prune_warnings [file_contents "ld.stderr"]]
1282 remote_file host delete "ld.stderr"
1283 remote_file build delete "ld.stderr"
1285 if {[info exists old_lc_all]} {
1286 set env(LC_ALL) $old_lc_all
1291 if ![string match "" $comp_output] then {
1292 send_log "$comp_output\n"
1297 remote_upload host "dump.out"
1299 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1300 verbose "output is [file_contents "dump.out"]" 2
1302 remote_file build delete "dump.out"
1303 remote_file host delete "dump.out"
1306 remote_file build delete "dump.out"
1307 remote_file host delete "dump.out"
1311 if { $failed != 0 } {
1313 } else { if { $is_unresolved == 0 } {
1318 # Catch action errors.
1319 if { $is_unresolved != 0 } {
1320 unresolved $testname
1326 # This definition is taken from an unreleased version of DejaGnu. Once
1327 # that version gets released, and has been out in the world for a few
1328 # months at least, it may be safe to delete this copy.
1329 if ![string length [info proc prune_warnings]] {
1331 # prune_warnings -- delete various system verbosities from TEXT
1334 # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
1336 # Sites with particular verbose os's may wish to override this in site.exp.
1338 proc prune_warnings { text } {
1339 # This is from sun4's. Do it for all machines for now.
1340 # The "\\1" is to try to preserve a "\n" but only if necessary.
1341 regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text
1343 # It might be tempting to get carried away and delete blank lines, etc.
1344 # Just delete *exactly* what we're ask to, and that's it.
1349 # targets_to_xfail is a list of target triplets to be xfailed.
1350 # ldtests contains test-items with 3 items followed by 1 lists, 2 items
1351 # and 3 optional items:
1354 # 2:assembler options
1355 # 3:filenames of source files
1356 # 4:name of output file
1358 # 6:compiler flags (optional)
1359 # 7:language (optional)
1360 # 8:linker warning (optional)
1362 proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
1375 foreach testitem $ldtests {
1376 foreach target $targets_to_xfail {
1379 set testname [lindex $testitem 0]
1380 set ld_options [lindex $testitem 1]
1381 set as_options [lindex $testitem 2]
1382 set src_files [lindex $testitem 3]
1383 set binfile tmpdir/[lindex $testitem 4]
1384 set expfile [lindex $testitem 5]
1385 set cflags [lindex $testitem 6]
1386 set lang [lindex $testitem 7]
1387 set warning [lindex $testitem 8]
1391 # verbose -log "Testname is $testname"
1392 # verbose -log "ld_options is $ld_options"
1393 # verbose -log "as_options is $as_options"
1394 # verbose -log "src_files is $src_files"
1395 # verbose -log "actions is $actions"
1396 # verbose -log "binfile is $binfile"
1398 # Assemble each file in the test.
1399 foreach src_file $src_files {
1400 set objfile "tmpdir/[file rootname $src_file].o"
1401 lappend objfiles $objfile
1403 # We ignore warnings since some compilers may generate
1404 # incorrect section attributes and the assembler will warn
1406 if { [ string match "c++" $lang ] } {
1407 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1409 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1412 # We have to use $CC to build PIE and shared library.
1413 if { [ string match "c" $lang ] } {
1414 set link_proc ld_simple_link
1416 } elseif { [ string match "c++" $lang ] } {
1417 set link_proc ld_simple_link
1419 } elseif { [ string match "-shared" $ld_options ] \
1420 || [ string match "-pie" $ld_options ] } {
1421 set link_proc ld_simple_link
1424 set link_proc ld_link
1428 if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
1434 # Check if exec_output is expected.
1435 if { $warning != "" } then {
1436 verbose -log "returned with: <$exec_output>, expected: <$warning>"
1437 if { [regexp $warning $exec_output] } then {
1444 if { $failed == 0 } {
1445 send_log "Running: $binfile > $binfile.out\n"
1446 verbose "Running: $binfile > $binfile.out"
1447 catch "exec $binfile > $binfile.out" exec_output
1449 if ![string match "" $exec_output] then {
1450 send_log "$exec_output\n"
1451 verbose "$exec_output" 1
1454 send_log "diff $binfile.out $srcdir/$subdir/$expfile\n"
1455 verbose "diff $binfile.out $srcdir/$subdir/$expfile"
1456 catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output
1457 set exec_output [prune_warnings $exec_output]
1459 if ![string match "" $exec_output] then {
1460 send_log "$exec_output\n"
1461 verbose "$exec_output" 1
1467 if { $failed != 0 } {
1477 # List contains test-items with 3 items followed by 2 lists, one item and
1478 # one optional item:
1480 # 1:ld or ar options
1482 # 3:filenames of source files
1483 # 4:action and options.
1484 # 5:name of output file
1485 # 6:language (optional)
1488 # objdump: Apply objdump options on result. Compare with regex (last arg).
1489 # nm: Apply nm options on result. Compare with regex (last arg).
1490 # readelf: Apply readelf options on result. Compare with regex (last arg).
1492 proc run_cc_link_tests { ldtests } {
1505 foreach testitem $ldtests {
1506 set testname [lindex $testitem 0]
1507 set ldflags [lindex $testitem 1]
1508 set cflags [lindex $testitem 2]
1509 set src_files [lindex $testitem 3]
1510 set actions [lindex $testitem 4]
1511 set binfile tmpdir/[lindex $testitem 5]
1512 set lang [lindex $testitem 6]
1517 # Compile each file in the test.
1518 foreach src_file $src_files {
1519 set objfile "tmpdir/[file rootname $src_file].o"
1520 lappend objfiles $objfile
1522 # We ignore warnings since some compilers may generate
1523 # incorrect section attributes and the assembler will warn
1525 if { [ string match "c++" $lang ] } {
1526 ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1528 ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
1532 # Clear error and warning counts.
1535 if { [ string match "c++" $lang ] } {
1541 if { [regexp ".*a$" $binfile] } {
1542 if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
1548 } elseif { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
1555 if { $failed == 0 } {
1556 foreach actionlist $actions {
1557 set action [lindex $actionlist 0]
1558 set progopts [lindex $actionlist 1]
1560 # There are actions where we run regexp_diff on the
1561 # output, and there are other actions (presumably).
1562 # Handling of the former look the same.
1566 { set dump_prog $objdump }
1568 { set dump_prog $nm }
1570 { set dump_prog $READELF }
1573 perror "Unrecognized action $action"
1579 if { $dump_prog != "" } {
1580 set dumpfile [lindex $actionlist 2]
1581 set binary $dump_prog
1583 # Ensure consistent sorting of symbols
1584 if {[info exists env(LC_ALL)]} {
1585 set old_lc_all $env(LC_ALL)
1588 set cmd "$binary $progopts $binfile > dump.out"
1590 catch "exec $cmd" comp_output
1591 if {[info exists old_lc_all]} {
1592 set env(LC_ALL) $old_lc_all
1596 set comp_output [prune_warnings $comp_output]
1598 if ![string match "" $comp_output] then {
1599 send_log "$comp_output\n"
1604 if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
1605 verbose "output is [file_contents "dump.out"]" 2
1612 if { $failed != 0 } {
1614 } else { if { $is_unresolved == 0 } {
1619 # Catch action errors.
1620 if { $is_unresolved != 0 } {
1621 unresolved $testname
1627 # Returns true if --gc-sections is supported on the target.
1629 proc check_gc_sections_available { } {
1630 global gc_sections_available_saved
1633 if {![info exists gc_sections_available_saved]} {
1634 # Some targets don't support gc-sections despite whatever's
1635 # advertised by ld's options.
1636 if { [istarget alpha*-*-*]
1637 || [istarget mep-*-*]
1638 || [istarget ia64-*-*]
1639 || [istarget *-*-cygwin]
1640 || [istarget *-*-mingw*] } {
1641 set gc_sections_available_saved 0
1645 # elf2flt uses -q (--emit-relocs), which is incompatible with
1647 if { [board_info target exists ldflags]
1648 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
1649 set gc_sections_available_saved 0
1653 # Check if the ld used by gcc supports --gc-sections.
1654 set ld_output [remote_exec host $ld "--help"]
1655 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
1656 set gc_sections_available_saved 1
1658 set gc_sections_available_saved 0
1661 return $gc_sections_available_saved
1664 # Check if the assembler supports CFI statements.
1666 proc check_as_cfi { } {
1667 global check_as_cfi_result
1669 if [info exists check_as_cfi_result] {
1670 return $check_as_cfi_result
1672 set as_file "tmpdir/check_as_cfi.s"
1673 set as_fh [open $as_file w 0666]
1674 puts $as_fh "# Generated file. DO NOT EDIT"
1675 puts $as_fh "\t.cfi_startproc"
1676 puts $as_fh "\t.cfi_endproc"
1678 remote_download host $as_file
1679 verbose -log "Checking CFI support:"
1680 rename "perror" "check_as_cfi_perror"
1681 proc perror { args } { }
1682 set success [ld_assemble $as $as_file "/dev/null"]
1684 rename "check_as_cfi_perror" "perror"
1685 #remote_file host delete $as_file
1686 set check_as_cfi_result $success
1690 # Provide virtual target "cfi" for targets supporting CFI.
1692 rename "istarget" "istarget_ld"
1693 proc istarget { target } {
1694 if {$target == "cfi"} {
1695 return [check_as_cfi]
1697 return [istarget_ld $target]